1. Octopus vulgaris. Pupils are horizontal slits, so slit aperture permits good vision. July 2012. Sublittoral. Setúbal, Portugal.
2. Octopus vulgaris. Pupils are horizontal slits, so slit aperture permits good vision. July 2012. Sublittoral. Setúbal, Portugal.

Octopus vulgaris. Pupils are horizontal slits, so slit aperture permits good vision. July 2012. Sublittoral. Setúbal, Portugal.

Octopus vulgaris

© João Pedro Silva http://www.flickr.com/photos/jpsilva1971/

Octopus vulgaris

© João Pedro Silva http://www.flickr.com/photos/jpsilva1971/